actions parameter in ApplicationIntegrationToolset has wrong type

[manifoldtimblin]

Describe the bug
The actions parameter of the ApplicationIntegrationToolset class has the wrong type. The type currently in the codebase is Optional[str], however the example in the comments and usage as an argument in the instantiation of IntegrationClient indicate the type should actually be Optional[list[str]]

[jwiejulie]

Commit merged! Closing, thank you!